EXAM 200 QUESTIONS AND CORRECT
ANSWERS|AGRADE
1. 3cm what is the distance to the interface
if the round trip time for a sound
wave is 39 microseconds?
2. low frequency, low amplitude which signals are eliminated by the
wall filter in a spectral Doppler dis-
play?
3. two images demonstrating the same at minimum, what is required when
pathology from different scan planes documenting a pathology discov-
ered during an examination?
4. Increased by 2 times If the diameter of the sound beam
is halved by focusing, what hap-
pens to the intensity
5. A what is the most common cause of
localized vertical nonuniformity in a
real-time B-mode image?
a) Improper TGC
b) Defective transducer elements
c) Faulty preamplifier
d) Malfunctioning scan converter
6. C What is this artifact?
A. Shadowing
B. Side lobe
C. Reverberation
D. Mirror image
,7. D How do you fix this
A. Decrease the color scale
, B. Decrease the color packet size
C. Increase the color packet size
D. Increase the color scale
8. B Which way is the blood flowing?
A. Right to left
B. Left to right
C. Bidirectional
D. Cannot tell
9. which imaging modality can provide
the most accurate measurement of tu-
mor volume?
Color Doppler
B-mode
A-mode
M-mode
10. Which statement is most accurate re-
garding surface rendering three-di-
mensional ultrasound imaging?
Improve accuracy of volume measure-
ment
Minimizes effect of attenuation arti-
facts